Heating system.



' E. H. GOLD. HEATING SYSTEM. APPLIOATION FILED AUG. 7

Patented July 27,1909.

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l I MINHIHMMMM B. H. GOLD. HEATING SYSTEM. LIOATION FILED AUG. v, 1967 Patented July 27, 1909.

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E. H.'GOLD. HEATING SYSTEM. APPLIOATION FILED AUG. 7, 1907.

Patented July 27; 1909.

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ND U n@ EGBERT H. GOLD, OF CHICAGO, ILLINOIS.

HEATNG SYSTEM.

Specification of Letters Patent.

Patented July 27', 1909.

Application iled August 7, 1907. Serial No. 387,550.

system and has for a principal object to provide means tor trapping and storing` water of condensation from the radiating ipes and causing the same to be delivered ror use at any desired place.

The invention is particularly suitable for use in connection with heating systems for railway cars and will be shown and describen 4as an amplification and improvement upon the type of car heating system shown in my co-pending application Serial No. 384,804, tiled July 20, 1907 but it will be obvious that the invention may be used with different car heating systems from the one referred to, or in other connections or for other purposes Where similar conditions prevail.

The car heating system referred to comprises a set of radiating pipes normally connected with the steam train pipe through a thermostatically operated pressure reducing controller, together with an auxiliary steam generator adapted to be used to supply the steam when the train pipe supply is not available, for example, when the car is cut off from the engine. rlhis auxiliary heater is used only occasionally and should, of course, be as small and compact as possible. For this reason, its boiler must be necessarily small; and this is desirable also so that a supply of steam may be obtained quickly. The condensation talring place in a system of pipes suiiicient to keep a large railway car Warm in cold weather is very considerable. lt is, therefore, necessai", and one of the serious problems involved in the use of thel system above referred to, to provide some convenient means for keeping up the supply oi' water in the boiler of the auxiliary generator during use. lt would not be practical to use reservoirs kept full all thertime, as that would involve carrying about all the time a considerable supply of water which would. be used but rarely.

My resent invention contemplates trapping tiewater oi condensation, storing it and, when the auxiliary generator is used, forcing the same back into the boiler, preferably by means of compressed air, a supply or" the latter being available on all passenger cars. Preferably the water is supplied to the boiler by an automatic feed, the whole system of water supply operating without the necessity of care. lt is obvious that the water of condensation, so trapped and stored, might be usedl for other purposes than feeding the generator; and that the tanks used for Watermight, if desired, be tilled from other sources than the radiating pipes.

The invention is illustrated in the accompanying drawings, in which- Figure 1 is a diagrammatic view illustrating one application of my invention. Fig. 2 is a detail section of the automatic feed. Fig. 3 is a view similar to Fig. l ota modified arrangement. Fig. L.lis a detail cross section of the valve in the return pipe of the radiating system. Fig. 5 is an enlaro'edview in perspective of the pipes, tanks and controller shown in Fig. l. Fig. 6 is a similar view of the arrangements shown in Fig. 3; and Fig. 7 is a vertical, ysectional eleyation of the controller or the vapor reguator.

Like characters of reference indicate like parts in the several figures oi the drawings.

A represents the iiooring of the car, B a radiator or system of radiating pipes represented more or less conventionally; K the steam train pipe which ordinarily runs the length of the train and receives steam from the locomotive; G the air train pipe which also runs the length o1c the train and supplies compressed air for operating the air'bralres on the several cars; C the controller or vapor regulator, which in this case is shown as a common form of vapor regulator regulating the inflow or steam to the radiator in accordance with thermostatic conditions at the discharge end oi the radiator; and D an auxiliary steam generator.

1When the car is connected up with the engine under y, ordinary conditions, steam will be supplied to the radiator B from train pipe K through a branch pipe K', provided with a hand valve of Vordinary construction K2. T he supply of steam from the train pipe, in which the pressure is usually very considerable but variable, to the radiator is controlled by controller O, the construction of which is shown in Fig. 7. i

O is a casing divided into an inlet chamber O6, an outlet chamber O7 and a chamber O8, the latter being in communication with a discharge pipe C5, which is tapped into the casing. At the end of pipe C5 is a thermostat casing C2, in which is located thermostat C10, consisting of a receptacle illed with a volatile fluid, the thermostat being adjusted by the ordinary adjusting screw C11. A port C12 puts chamber CG in communication with C7 and this port is controlled by a valve C15, the stem of which is engaged by a lever C14, the other end of which engages an operating rod C15, which seats upon the thermostat C10.

C2 is a pipe leading from valve K2 to chamber C, C3 a pipe leading from chamber C7 to radiator B; C4 is a pipe leading from the point oi exhaust of radiator B to pipe C5, where it is tapped into a tee C15 in said pipe.

1 have illustrated in the drawings the radiator and control device on one side of the car only. Ordinarily there will be another radiator with a similar control device on the other side of the car, this radiator being fed from the train pipe K by the branch pipe K3. VJith valve K2 open and pipe K filled with steam from the locomotive, just enough steam is admitted to the radiator B to mai-n tain the same full of steam at atmospheric pressure. An excess of steam at the discharge end oi the radiating pipes causes the thermostat C40 to expand and valve C13 to close or throttle the port between chambers C5 and C7. A steam heating system of this sort has become known as the Hvapor system. Ordinarily the water of condensation coming from the radiator flows out through the discharge pipe 5 of the controller and is wasted. g

1t is one of the objects oi' my invention to provide means for trapping this water of condensation, without interfering with the flow of steam from the point of exhaust 'of the radiator to the controller, and causing such water of condensationt'o be stored Vupon the -car 'and to be delivered at anypoint onthecar Where it is desirable to use it. For example, the heating system which 1 have shown involves the provision of an auxiliary steam `generator adapted to supply the radiating pipes with steam when the car is cut otr' from Vthe locomotive or when, 'for any other reason,

the system cannot be fed lfrom the train pipe K; and in such A`a system the water ol' condensation is trapped, stored in suitable receptacles, and fed to the boiler of the auxiliary generator in amounts suhcient to keep the water in the generator at the desired level. Any sort oi' steam generator might be used in this connection. 1 have shown a generator D 4ol 'familiarconstruction, which `conduct steam to the radiator 'on the oppo- 1 site side of the car (not shown). Pipes D and D5 are provided with valves D5 and D7, respectively.

When steam is not available from the train pipe K, a fire may be lighted on grate D4 of the tor will require a good deal of water in order to maintain the radiating pipes full of steam at atmospheric pressure; 1t Will be possible to carry a supply of water on the car for such an emergency, but this would necessitate the use of large tanks which, for the greater part ofthe time, would be useless and which would be likely, through inattention, not to be iilled at the time when they were needed. trapping the water of condensation and storing the same in receptacles which are constantly being replenished so long as there is any call for steam in the radiating pipes, it is possible to very considerably diminish the amount of Water kept on hand for occasional use in the auxiliary generator. 1 have shown two arrangements of tanks having this purpose in vieW together with means for utilizing compressed air taken from the air train pipe for forcing the water thus trapped Iand stored into the boiler of the generator when the same is put in operation. One of these arrangements is shown in Figs. l and 5, the other in Figs. 3 and 6. A diiierent `arrangement of tanks and pipes might, of course, be devised, these two yforms being given merely as illustrating the principle of my invention.

Referring first to Figs. 1, 2, 4 and 5, E, E represent two water tanks. A pipe E2 leads from valve casing E3 in pipe C4 between the radiator B and the drip pipe C5 and is provided with branches E8, E9, having, respectively, valves E10, E12, which branches lead .into tanks E, E', respectively. Vl/lithn the valve case E3 is a valve iece E4 operated by a handle E5 and which las the passageway E5, which can be alined With the )ipe C4, and the branch passageway E7 leading to pipe E2, ras shown in fu l lines in Fig. 4. By giving E5 a half rotation, pipe E2 may be closed Without interfering With the passage of steam through C4. G is a principal air tank connected with the air train pipe Gr by branch -pipe G12; land an auxiliary air tank constituting the source of air supply for the system connected with G by pipe G3, in which is the pressure reducing valve G4. A

G5 leads from the tank G2 and has the -pipe branches G, G7 provided with the hand two valves G8 GQ resi ectivel which branches vnninication between tanks E, E and the water feed device J, this valve being operated by the handle F3. The automatic water feed device consists of a casing J in which is a standard J having pivoted thereto a lever J2 l carrying a iioat J3, and the valve stem J4 of a valve J5 to control the opening of ipe F. The pipe JG leads from the casing Jp to the boiler D2 of the generator.

The operation of these parts will be as follows: Suppose steam is not available from train pipe K, valve K2 is closed, valve D opened and a hre lighted on the grate of the generator. Tanks E, E are used alternately, one to collectl the water of condensation, the other being connected up with the compressed air and with the automatic feed device J, so that it supplies the generator with water. -When the radiator is receiving steam from the train pipe, valve E4 may be turned, if desired, so as to allow the water of condensation to escape through the con- 'trollen "1v1 hen the generator is used, the valve is turned so that passageway E7 registers with the pipe E2. The water of condensation is, therefore, free to pass from the radiator down into pipe E2 and from there into tank E or E, according to whether valve E10 or valve E11 is open. lf valve E10 is open and E11 closed (tank E being supposed to have been previously filled with water), valve G8 will be closed and G2 open. Water will., therefore, be forced by air pressure in tank G2 through branch pipe F2 and pine F into the casing J, the valve at the junction of pipes F and F2 being in position to shut oliP communication with tank E. The water flows through casing J and pipe 'J5 into boiler D2. llVhen thei'proper level has been reached in the boiler, the water in casing J, being at the same level, closes valve J5 by means of the float J3. The supply of water to the generator is, therefore, automatic and in accordance with its needs. When tank E is emp y, tank E will by this time have been fille-d. Water of condensation may then be caused to pass to tank E and tank E connected up with the air supply and water feed device by reversing, the position of valves E10, E11, G5, GQ and F2. lf desired, the radiator on the opposite side of the car may drain into tanks E, E through an extension E12 of pipe E2.

rlhe general arrangements are the same in the modification shown in Figs. 3 and 6, except that in thisy case a main water tank is provided from which the water is forced to the generator, a collecting tank being provided which can be emptied into the main tank at'intervals. The main tank is indicated at H, the collectingV tank at H, the latter being connected to the pipe C1 by a pipe H2 corresponding to pipe E2 of the other arrangement, this pipe having a hand valve H2'. The tanks are connected by a pipe HAi having a hand valve H5. A pipe H6 leads from the tank H to the generator (not shown) or to any other desired place where the water is to be utilized. A branch pipe H7 leads to a radiator on the opposite side of the car (not shown). A pipe G10 having a check valve G11 and a hand valve G15 leads from the auxiliary air tank G2 into tank H. The water of condensation, valve H2 being open and valve H5 closed, iiows into H, tank H being supposed to be 'filled or partially filled. Air pressure from G2 forces the water from tank H through the pipe H5. When tank H is filled, valves H3 and G13 may be temporarily closed and valve H5 opened. The water from H will flow into H, from which the pressure has been taken by closing valve 13.

l claim:

l. rlhe combination with a radiating system, a source of supply of steam at high but variable pressure, and means for taking steam from said source of supply and circulating it through the radiating system at substantially atmospheric pressure, of means for receiving and storingthe water of condensation from the radiating system, a source of supply of compressed air, and valved connections between the radiating system, the receiving means and between the receiving means and the air, supply, whereby the water of condensation may be at will drained into and forced from the receiving means.

2. The combination with a radiating systern, a Source of supply of steamV at high but variable pressure, and means' for taking steam from said source of supply and circulating it through the radiating system at substantially atmospheric pressure, of means for receiving and storing the water of condensation from the radiating system comprising two receptacles having a valved connection between them, a'source of supply of compressed air, and valved connections between the radiating system, receiving means and air supply, whereby the water .of condensation may be simultaneously drained into and forced from the receiving means.

3. The combination with a radiating system, a source of supply of steam at high but variable pressure, and means for taking steam from said source of supply and circulating it through the radiating system at substantially atmospheric ressure, of receiving means for the water o i condensation from the radiating system com rising a plurality oi receptacles having va ved connections between the same, a source of supply oi compressed air, and means whereby the water of condensation may be alternately drained into one of said receptacles and forced by pressure of air 'from the other receptacle.

a. The combination with a radiating system, a source oi supply of steam at high but variable pressure, and meansv for taking steam from said source of supply and circulating it through the radiating system at substantially atmospheric pressure, of two receptacles, a source of supply oi' compressed air, means for connecting one oi the receptacles with the radiating system, means for connecting the other oi' said receptacles with the source of supply of compressed air, and a valved connection between the receptacles, whereby the water' of condensation may be drained into one oi the same and forced from the other.

5. The combination with a radiating system, means for supplying the same with steam, and a controller under theinluence of temperature conditions in the radiating system; of receiving means to receive the water of condensation, a source oi' supply of compressed air, and valved connections. between the radiating system, the receiving means and the air supply, whereby steam is permitted to pass out from the radiating system to the controller while the water oi' condensation is drained into and forced from the receiving means.

6. The combination with a radiating system, means for supplying the same with steam, a controller under the influence of temperature conditions at the discharge end ol' the radiating system, and a connection between the radiating system and suoli controller; of receiving means for the water of condensation, a drain pipe from the connection between the radiating system and the controller to said receiving means, a source of supply oi compressed air, connections between the same and the receiving means, and valves in said connections and in the train pipe, whereby steam from the radiating system is permitted to pass into the controller while water of condensation is caused to pass into and is forced from the receiving means.

7. The combination with a radiating system, means for supplying the same with steam, and a controller under the iniluence of temperature conditions in said system; of receiving means for water of condensation comprising two receptacles, a valved connection between one of said receptacles and the radiating system, a valved connection between said receptacles, and means for forcing the water out of the other of said receptacles.

8. The combination with a radiating system, means for supplying the same with steam, a controller, and a connection from the discharge end of the radiating system to the controller oi' receiving means for water of condensation comprising two receptacles, a drain pipe leading from the connection between the radiating system and the controller to one of said receptacles, a source of' supply of compressed air, a connection between the receptacles, means for shutting oil communication between the receptacles, and means for opening communication between the source ci air supply and one of said receptacles.

9. rl`he combination with a radiating system, of a steam generator, a controller to control the steam in said radiating system in accordance with temperature conditions in said system, receiving means for the water of condensation, a source of supply oi' compressed air, and valved connections between the radiating system, controller, receiving means, air supply and generator, whereby steam is permitted to pass from the radiating system to the controller and water oi condensation is conducted from the radiating system through receiving means to said steam generator.

l0. The combination with a radiating system, of a steam generator, a controller whereby the steam is circulated through the radiator at substantially atmospheric pressure, a source of supply of compressed air, and means for withdrawing water oi condensation from the radiating system and forcing it into the steam generator by air pressure.

1l. The combination with a radiating system, of a steam generator, a controllerwhereby the steam is circulated through the radiator' at substantially atmospheric pressure, a source of supply of air under aressure, and means operated by the air supp y whereby the water of condensation is withdrawn from the radiating system and fed to the steam generator so as automatically to maintain the water in the boiler thereof at a desired level.

l2. rihe combination with a radiating system having a vent for the exhaust steam, with a steam generator, means for withdrawing the water of condensation from the radiating system without closing the vent for the exhaust steam, a controller operated by such exhaust steam and adapted 'to regulate the amount of steam maintained in the radiating system, and means for introducing the water of condensation into the boiler of the generator so as automatically to maintain the water therein at a given level.

13. The combination with a radiating system having a vent for the exhaust steam,

with a steam generator, means for withdrawl ing the water of condensation from the radiating system without closing the vent for the exhaust steam, a controller operated by such exhaust steam and adapted to regulate the amount of steam maintained in the radiating system, a source of supply of air under pressure, and means operated thereby for introducing the water of condensation into the boiler of the generator so as automatically to maintain the water therein at a given level.

14. The combination with a railway car, of a source of supply of compressed air, a radiator, a steam generator, a controlling device for controlling the flow of steam from the generator to the radiator comprising a thermostat located adjacent to the discharge end of the radiator, receiving means for water of condensation comprising two receptacles, means for connecting one of said receptacles with the radiator without preventing the iow of steam to said thermostat,y and means for connecting the other of said receptacles with the source of compressed air and with the generator.

15. The combination with a railway car, of a source of supply of steam at high pressure,

a source of supply of compressed air, a radiator, a supply pipe leading from the source of supply of steam to the radiator, a pressure reducing valve in the supply pipe, a thermostatic device in operative communication with the discharge pipe from the radiator to operate the pressure reducing valve, an auxiliary steam generator, a steam pipe leading from the generator to the supply pipe of the radiator at a point in advance of the pressure reducing valve, receiving means for water of condensation comprising two receptacles, and a valved connecting pipe from one to the other, a pipe having a valve connecting one of said receptacles with the discharge end of the radiator, and means for connecting the other of said receptacles with the source of supply of compressed air and with the steam generator.

16. The combination with a railway car, of a source of supply of steam at high pressure, a source of supply of compressed air, a radiator, controlling means for controlling the flow of steam from the source of supply to the radiator in accordance with thermostatic conditions in said radiator, an aukiliary steam generator, pipe connections between the same and the radiator, whereby the flow of steam from the generator, when used, is controlled by the same controlling device employed when steam is taken from said first-mentioned source of supply of steam, receiving means for the water of condensation from the radiator, a valved connecting pipe between the radiator and the receiving means, a pipe between the receiving means and the generator and a valved pipe between the supply of compressed air and the receiving means so that the steam generator is 'fed with water of condensation from the radiator.

17. The combination with a railway car, of a radiator, a steam generator, a compressed air train pipe, two air tanks, a pipe connecting them, provided with a pressure reducing valve, a receptacle for feed water for the generator, means connecting one of said tanks with the air train pipe, means for connecting the other of the air tanks with the water receptacle, means for connecting the latter with the steam generator, and an automatic regulating device between the water receptacle and the generator comprising a float tank, .an inlet valve for the same, and a float to operate said inlet valve for automatically maintaining the water in the generator at a desired level.

18. The combination with a railway car, of a steam train pipe carrying steam at a high but variable pressure, an air train pipe, a radiator in said car, controlling means under the influence of steam at the outlet of said radiator for introducing steam into the radiator from said train pipe, and maintaining the steam in the radiator at substantially atmospheric pressure, means for withdrawing water of condensation from said radiator without interfering with the flow of steam to the outlet thereof, an auxiliary steam generator adapted to be connected with the radiator when steam from said train pipe is not available, an air tank connected with said air train pipe, and means for maintaining the pressure in said tank substantially uniform, receiving means for the water of condensation, and valved connections from the air tank to said water receiving means, and from said water receiving means to the generator, whereby water of condensation from the radiator may be used to feed the generator.

EGBERT H. GOLD.

Witnesses:

Gr. Y. SKINNER, H. L. Pack. 

